The IRS has published (Notice 2012-1) the standard mileage rates for 2012. The rate for business travel remains at 55.5 cents. The rate for moving is down 1/2 cent, to 23 cents per mile. The charitable rate remains unchanged at 14 cents.
Related: Mileage rate goes to 55.5 cents July 1, 2011

Changing the rate in the middle of the year could present logistical challenges, and if the price of gas dropped, there would be more complications, she said. “If it increased now and gas prices drop significantly, you’re going to end up overpaying with regard to expenses incurred,” she said.

Beginning on Jan. 1, 2010, the standard mileage rates for the use of a car (also vans, pickups or panel trucks) will be:
* 50 cents per mile for business miles driven
* 16.5 cents per mile driven for medical or moving purposes
* 14 cents per mile driven in service of charitable organizations